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Mono-aqua-bridged dinuclear complexes of Cu(II) containing NNO donor Schiff base ligand: Hydrogen-bond-mediated exchange couplin
| hal.structure.identifier | Department of Chemistry | |
| hal.structure.identifier | Sarojini Naidu College for Women | |
| dc.contributor.author | BISWAS, Chaitali | |
| hal.structure.identifier | School of Chemistry | |
| dc.contributor.author | DREW, Michael G. B. | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | ASTHANA, Saket | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DESPLANCHES, Cédric | |
| hal.structure.identifier | Department of Chemistry | |
| dc.contributor.author | GHOSH, Ashutosh | |
| dc.date.issued | 2010 | |
| dc.identifier.issn | 0022-2860 | |
| dc.description.abstractEn | Two new mono-aqua-bridged dinuclear Cu(II) complexes of tridentate NNO Schiff bases, [Cu<sub>2</sub>(μ-H<sub>2</sub>O)L<sup>1</sup><sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub>·2H<sub>2</sub>O <strong>(1)</strong> and [Cu<sub>2</sub>(μ-H<sub>2</sub>O)L<sup>2</sup><sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>](BF<sub>4</sub>)<sub>2</sub>·2H<sub>2</sub>O <strong>(2)</strong> where HL<sup>1</sup> = 2-[1-(2-dimethylamino-ethylimino)-ethyl]-phenol and HL<sup>2</sup> = 2-[(2-dimethylamino-ethylimino)-methyl]-phenol were synthesized. Both the complexes were characterized by single-crystal X-ray diffraction analyses and variable-temperature magnetic measurements. For both the complexes each Cu(II) ion is in a square-pyramidal environment being bonded to three atoms from the tridentate NNO Schiff base and a terminal H<sub>2</sub>O molecule in the equatorial plane; a second H<sub>2</sub>O ligand acts as a bridge between the two Cu(II) centres through the axial positions. Hydrogen bonds between the terminal H<sub>2</sub>O ligand and the Schiff base of the adjacent centre complete the intra-dimer linkages. Variable-temperature (4–300 K) magnetic susceptibility measurement shows the presence of significant antiferromagnetic coupling for both the complexes (<i>J </i>= −12.2 and −12.5 cm<sup>−1</sup>, respectively, for <strong>1</strong> and <strong>2</strong>), mediated mainly through the intra-dimer H-bonds. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Copper(II) | |
| dc.subject.en | Mono-aqua-bridge | |
| dc.subject.en | Schiff base | |
| dc.subject.en | Dinuclear | |
| dc.subject.en | Crystal structure | |
| dc.subject.en | Magnetic study | |
| dc.title.en | Mono-aqua-bridged dinuclear complexes of Cu(II) containing NNO donor Schiff base ligand: Hydrogen-bond-mediated exchange couplin | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.molstruc.2009.11.035 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Molecular Structure | |
| bordeaux.page | 39-44 | |
| bordeaux.volume | 965 | |
| bordeaux.issue | 1-3 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00463244 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00463244v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Molecular%20Structure&rft.date=2010&rft.volume=965&rft.issue=1-3&rft.spage=39-44&rft.epage=39-44&rft.eissn=0022-2860&rft.issn=0022-2860&rft.au=BISWAS,%20Chaitali&DREW,%20Michael%20G.%20B.&ASTHANA,%20Saket&DESPLANCHES,%20C%C3%A9dric&GHOSH,%20Ashutosh&rft.genre=article |
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